Dell Precision 7920 Rack Owner's Manual page 115

Table 33. Relative humidity specifications
Relative humidity
Storage
Operating
Table 34. Maximum vibration specifications
Maximum vibration
Operating
Storage
Table 35. Maximum shock specifications
Maximum shock
Operating
Storage
Table 36. Maximum altitude specifications
Maximum altitude
Operating
Storage
Table 37. Operating temperature de-rating specifications
Operating temperature de-rating
Up to 35°C (95°F)
35°C to 40°C (95°F to 104°F)
40°C to 45°C (104°F to 113°F)
Particulate and gaseous contamination specifications
The following table defines the limitations that help avoid any equipment damage or failure from particulate and gaseous contamination. If
the levels of particulate or gaseous pollution exceed the specified limitations and result in equipment damage or failure, you may need to
rectify the environmental conditions. Remediation of environmental conditions is the responsibility of the customer.
Specifications
5% to 95% RH with 33°C (91°F) maximum dew point. Atmosphere must be
non-condensing at all times.
10% to 80% relative humidity with 29°C (84.2°F) maximum dew point.
Specifications
0.26 G at 5 Hz to 350 Hz (all three axes).
rms
1.88 G at 10 Hz to 500 Hz for 15 min (all six sides tested).
rms
Specifications
Six consecutively executed shock pulses in the positive and negative x, y,
and z axes of 6 G for up to 11 ms.
Six consecutively executed shock pulses in the positive and negative x, y,
and z axes (one pulse on each side of the system) of 71 G for up to 2 ms.
Specifications
3048 m (10,000 ft)
12,000 m (39,370 ft)
Specifications
Maximum temperature is reduced by 1°C/300 m (1°F/547 ft) above 950 m
(3,117 ft).
Maximum temperature is reduced by 1°C/175 m (1°F/319 ft) above 950 m
(3,117 ft).
Maximum temperature is reduced by 1°C/125 m (1°F/228 ft) above 950 m
(3,117 ft).
BIOS and UEFI 115